reduce signedness warning

diff --git a/libbb/getopt_ulflags.c b/libbb/getopt_ulflags.c
index 47f65d6b20f2a2199d5bc18d4469d6b9af259f36..376893fc85b708e1d2321ca877f731356dfd27e7 100644 (file)
--- a/libbb/getopt_ulflags.c
+++ b/libbb/getopt_ulflags.c
@@ -311,7 +311,7 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
        memset(on_off, 0, sizeof(complementally));
 
        /* skip GNU extension */
-       s = applet_opts;
+       s = (const unsigned char *)applet_opts;
        if(*s == '+' || *s == '-')
                s++;
        for (; *s; s++) {
@@ -345,7 +345,7 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
                        c++;
                }
        }
-       for (s = bb_opt_complementally; s && *s; s++) {
+       for (s = (const unsigned char *)bb_opt_complementally; s && *s; s++) {
                t_complementally *pair;
                unsigned long *pair_switch;